About: http://webisa.webdatacommons.org/44102099

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	He devoted his time and energy to travelling around Britain, particularly to the ports of Liverpool and Bristol, gathering evidence about the slave trade from eyewitnesses, especially from sailors who had worked on slave trading ships.
http://www.w3.org/ns/prov#wasQuotedFrom	bbc.co.uk